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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
3
|
| pubmed:dateCreated |
1998-7-14
|
| pubmed:abstractText |
The usefulness of normalization of negative T waves in exercise ECG was investigated as an index of myocardial viability in patients with previous myocardial infarction with no symptoms or ischemic ST-segment change during exercise test. A total of 39 patients, 20 with T-wave normalization (POS group) and 19 without T-wave normalization (NEG group) on exercise ECG. were studied. Myocardial viability was evaluated by thallium-201 single-photon emission computed tomography (SPECT) during exercise or at rest. We also assessed left ventricular ejection fraction (LVEF) by contrast ventriculography before (n=39) and after percutaneous transluminal coronary angioplasty (PTCA) (n=17). SPECT detected myocardial viability in 16 (80%) of the 20 patients in the POS group and in 4 (21%) of the 19 patients in the NEG group (p<0.01). LVEF increased after successful PTCA in the POS group (from 53+/-13% to 63+/-8%, p<0.025), but fell in the NEG group (from 57+/-10% to 51+/-8%). It is concluded that normalization of negative T waves on exercise ECG is a useful, simple index of myocardial viability in patients with previous myocardial infarction with no symptoms or ischemic ST-segment change during exercise testing.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:status |
MEDLINE
|
| pubmed:month |
Mar
|
| pubmed:issn |
0047-1828
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
62
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
153-9
|
| pubmed:dateRevised |
2004-11-17
|
| pubmed:meshHeading |
pubmed-meshheading:9583439-Adult,
pubmed-meshheading:9583439-Aged,
pubmed-meshheading:9583439-Angina Pectoris,
pubmed-meshheading:9583439-Electrocardiography,
pubmed-meshheading:9583439-Exercise,
pubmed-meshheading:9583439-Exercise Test,
pubmed-meshheading:9583439-Female,
pubmed-meshheading:9583439-Humans,
pubmed-meshheading:9583439-Male,
pubmed-meshheading:9583439-Middle Aged,
pubmed-meshheading:9583439-Myocardial Contraction,
pubmed-meshheading:9583439-Myocardial Infarction
|
| pubmed:year |
1998
|
| pubmed:articleTitle |
Relationship between normalization of negative T waves on exercise ECG and residual myocardial viability in patients with previous myocardial infarction and no post-infarction angina.
|
| pubmed:affiliation |
Department of Medicine, Institute of Clinical Medicine, University of Tsukuba, Ibaraki, Japan.
|
| pubmed:publicationType |
Journal Article
|